Signaling system.



H. 0. RUGH. SIGN ALING SYSTEM. APPLICATION FILED 1BB.15, 1909.`

'Patented May 3,' 1910.

nrraiii si irnsui-ATENT carica.

HARRY O. RUGH, OF SANDWICH, ILLINOIS, ASSIGNOR TO SANDWICH ELECTRIC COMPANY, OF SANDWICH. ILLINOIS, .A CORPORATION OF ILLINOIS.-

SIGNALING SYSTEM.

Specification of Letters Patent.

Patented May a, 191e.

Application filed February lfi, 1909. Serial No. 478,088.

To all whom 'it may concern:

Be it known that I, HARRY O. RUGH, citizen of the United States, residing at Sandwich, in the countyof Dekalb and State of Illinois, have'invented a certain new and useful Improvement in Signaling Systems, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to signaling systems, and has for its object the provision of an improved selective signaling device with which it is possible, by the operation of each selective signaling device to likewise selectively call a plurality of signals under the cont-rol of each select-ive signaling device.

My invention further contemplates central station calling devices in duplicate, so

that two separate operators, for instance,

may use the same signaling circuit, and, by

.virtue of the selective signaling arrangement aforesaid, may call different operators at the same station, if desired.

I will explain my invention more in detail by reference to the accompanying drawing,

which illustrates the same diagrammatically.'

I'have shown the central station A, and sub-stations B, C and D, united by two lline conductors 1 and 2. Each sub-station has a. polarized relay 3, which polarized relay, by virtue of its contacts 4 and, is adapted selectively to energize relays 6 and 7, as= desired,to effect' the step-by-step operation .ofV an element 8. Means, to be described hereinafter, are provided at the central station for sending battery impulses of a cerf tain polarity to actuate the relay 8 in a man.

ner to olperate the relay 6, and battery im- 'opposite polarity actuate t-herelay vided with a transmitter 9, and its associated receiver 10, connected in the ordinary manner. When the step-up element 8 is in its operative position, which positions have different 'angular relations in the different stations, its contact arm l1 engages the spring 12, which thereby closes the signaling circuit, including the battery 13, t e relay 14,

the armature 15 'of relay 6, and its associated contact. If, when the ste -up element 8 has completed the contact with the spring 12, the 'relay 6 is held in its closed osition without, however, sending "any furt er impulses,

position without further impulses, but the/ armature 15 of the relay 6 be perin-itted to retract to its normal position, as shown in the drawing, then circuit is complet-ed from the arm 11, spring 12, battery 13, low resistance relay 14, high resistance relay 19, armature 15, ar 20, element 8, back to the arm 11. A very high resistance relay 19 is now included in the circuit, and this high resistance relay will attract its armature 21, but not enough current iows through the low resistance relay 14 to permit it to attract its armature. Therefore, the local signal 22, under the control of the relay 19, will operate. From this, it will be apparent that if the element 8 is stepped up to its operative position, if the key at the central Astation which sends the impulses is held in its closed position when Sending the last impulse., the signal 1-8 will operate, Whereas, if the signal sending key, after sending the required numbe'r of impulses,` is allowed to return to normal or its open circuit position, signal. 22 will operate. Thus, I am enabled to select'- -ively aetuate signals 18 and 22 merely by holding the signal-sending key in its closed or open position, after it has sentthe required number of impulses to place the stepup mechanism in its operative positon. Considering the signals 18 and 22, I may employ a semaphore 23 under the control of solenoids 24 and 25", which, by means of a string 2G, draw it into its clear position or danger position, dependingupon whether relay 14' or relay 19 is energized.

The apparatus at the central station which sends the impulses consists of the sending key 27, which sends current o the/required polarity -to step-tip .the element 8 from the battery 28,-over line conductors 1 and 2, through the agency of the reversing springs 2f). Current of op osite polarity Ais sentover,

the line wires 1 an 2, when-the key 30 is depressed, which retraets the springs 29 by energizing the rela-y 31, thus reversing the polarity of the current. This reversal of the polarity operates the relay 7 to operate all the step-up elements and return them to normal. As before explained, if the key 27, in sending impulses, is held in its closed position after having sont therequired number of impulses, the signal 18 at the station called will operate, whereas, if said key is held in its open position afterhaving sent the required number ofjimpulses, signal 22 at the station' will operate.

I have shown duplicatesignal sending apparatus at the central station, as illustrated, so that two operators may use the line circuits 1 and 2, and in one-form of my invention one operator might'be limited to the call of si nals 22 and' the other operator might be imited to the call of signals 18,

although, in emergency cases, it might be that an operator would wish to call either signal. In this case, of course, it is necessary to provide indications between the two operators to appriseone operator that the other is having the signaling system in use. I have designated the respective o erators positions as E and F, respective y, and I associate withthe operator E a signal 32, which is operated by relays 33 andBs, which relays 33 and llgarerespectively under the control of keys 30 and 27. f Vice versa, the

Vsignal 35 for the operator F is under the control of the keys 30 and 27 of the appara tus under the control of the operator E.

Thus, the operator at Eknows -when the 4ceivingg; stations, unite operator atliF is using the calling devices; for when the operator F depresses' the key 27, relay 34 operates to close the circuit ,through the lamp 32, and this circuit remains closed until the' operator F actuates the key 30, which releases the signal-sending mechanism, at thesame time releasing the signal 32 by actuating the relay 33t While I have herein shown and particularly described the preferred embodiment of my invention, I do not limit myself to the precise construction and arrangement as 45 herein set forth, but

Having thus described myV invention, what I claim as new and desire to secure by Letters Patent is: g j

1. A signaling system comprising a signal sending station anda lurality of signal-re ceiving stations, unite by a line circuit, a

. step-bylstep signal-controllin v device at each 'signal-receiving station, di erent positions of said step-by-step devices corresponding res ectively to operative positions for the di erent signalreceiving stations, a plurality of signal controlline' means at each signal-receiving station un r 'the' controlof said stepbystep devices, and switching in lstrumentalities at the signalsending station whereby with a given operative osition o f a' step-by-step device, either signa controlling means may be selectively operated.,k

'2, A. signaling systcmcomprising a signalsending station and a pil'urality of s1gna1-re by avv line circuit, a

step-by-step signal-controlliig device at each signal-receivlng station, di erent positions of said step-by-step devices corresponding respectivelyto operative positions for tlie'different si0nalreceiving stations, signaling means capabe of giving unlike indications at each and sub-stations each having a signalanceiving device consisting of a circuit-closing element, and signaling means whose operative actuation is controlled by said element, and switching devices at the central station for voperating said circuit-closing element and with a given position of said circuit closing element operating said signaling means in either of a plurality oi. different` ways.

4. In a signaling system, a central station, and sub-stations each having a signal-re ceiving device consisting of a circuit-closing element and signaling ineanscapable of giving unlike indications, whose operative actu- `atioiisjs .controlled by said element, and

switching devices at the central station for. operating said circuit closing element and' causing a selective actuation of said signaling means to giveeitlier of the unlike indications aforesaid withva given position of said circuit-closing element. Y I

5. 'A step-by-step device having under its Vcontrol selective signaling means, in combi nation' with switching means at a central station vto operate said signaling means in either ofl a plurality of diiferent ways with avgiven operative position of sai-d step-bystep device.

6. AV signalcontrolling element at` a substation having vunder its control selective signaling means, in combination with switching means at a central station to operate said signaling means in either of a plurality of diiferent'ways with a given operative posi tion of said element and .to place said con-4 trolling elenient in its operative'position.

7. A signaling system havin a central station and substations, a step ysstep element at each sub-station, a plurality of signal-controlling means under the vcont-rol o means at the central station to cause an operation of either signal-controlling-meaiis with a give):r operative .position of said stcp-by-- step element.

8. A signaling .system havin@ a central station and sub-stations, a step-Iiy-step element at each sub-station, a pluralityl of Y signal-controlling means under the control of each stepby-step element, and switching 12o each step-by-step element, and switching 4 l means at the central station to step up said element, and with a given operative position of said element, to select for operation an desired signal-controlling means aforesai means are held in one circuit controllingposition after operating the step-by-step element to its operative position, the selective signal-controlling means are operated in a givenA manner, and When said switching means are held in a different circuit-controlling position after' stepping up said element to its operative position the selective signal-controlling means are operated in a different manner.

`l0. A signaling system having a central station and sub-stations, a step-by-step element at each sub-station, a pluralityT of signal-controlling means under the -control of said element, an impulse-sending mechanism at the central station to step-up said element to Aits operative position, and reactive means i whereby` vwhen the impulse-sending mechanism after stepping up said element to its operative position is held .in its impulsesending position a signal controlling means is operated, and when said mechanism after stepping said element to its operative position is 4held in its normal or non-impulsesending position a different signal-controlling means'is operated.

11. A signaling system fhaving a' central vstation and sub-stations, a step-by-step element at each sub-station, a plurality of signal-controlling relays under the 'control of `said element, an impulse-sending mechanism at the'oentral station to step-up said ele-- ment t fits operative position, and reactive means whereby When-f the impulse sending mech iiism after stepping up said element tofitsxperative-position isheld in its impulse sending position a signal-controlling relay is operated, and when said mechanism after stepping up said element to its operative position is held in lits normal or non-impulse-Sending positiona diferentsignalcontrolling relay is operated.'

12. A signaling system having a central station and sub-stations, a step-by-step element at each sub-station, a plurality of signal-controlling means under the control of said element, `an impulse-sending mechanism .at the central station to step up said element to its operative position, reactive means whereby when the impulse-sending vmechanism after step ing up said element' to itsoperative positlon is held in its imq pulse-sending position a. signal-controlling means is operated, and when said mechanism after stepping up said element to its operative position is held in its.normal or nonimpulse-sending position a different si nalcontrolling means is operated, a dup icateyo impulse-sending mechanism, and automatic means whereby indications are given at one mechanism when the other mechanism is in. use.

13. A signa'l-controlling device having 75 under its control selective signaling means, in combination with switching means at a central station to operate said signaling means in either of two different ways, with a given operative position of said signalcontrolling device. t

14. A step-hy-step signal-receiving devioe comprising a step-by-step element, a circuit changing` device under the control thereof, a. relay for moving said element to its operative position, a plurality of signal-control- *ling devicesunder the control of said I ment, and means controlled by said relay, circuit changing device and element oper- A able to selectively actuateA said signal-con- 99 trolling devices with a given position of said step-by-step element.

l5. A signaling system having a central station and a. plurality of substations, means at the central stat-ion for selectively operat-a ing circuit-closing elements at the sub-stations, circuit-closing elements at the substations, a plurality of signal-operating means under the control of said circuitclosing elements, and means at the central 100 station for selectively operating the desired signal-controlling means with a given position of said circuit-closing elements.

1Q A signaling system having a central station and sub-stations, step-by-step apparatus lat each sub-station, al plurality of signal-controlling meansl under the control `of said` step-by-step apparatus, and switching devices at the central station to eect'an operation of either signal-controlling means with-a given operative position of said step'- by-step apparatus. A

signal controlling element at a substation having under its control two signals,

' in combina-tion with ,switching devices at a 115 central station to, operate either signal with a given position of said`e1eme1t,.and to place said controlling element in it'soperative position.

`18. A step-by-step signal-controlling elementat a substation, having under-its cntrol two signals, in combinationwith switchin devices at a central stationI to operate eit 1er signal with a given position of said element, and to place said controlling ele- 125,

ment in itsoperative position.

19. A signaling system having a central station and a plurality of substations, means at the central station for selectivelyV operating step-by-step circuit-closing elements. at 13o the substations, .step-by-step circuit-closing In witness whereof, I hereunte subscribe elements at the sub-stations, a plurality ofmy name this 19th day of January A; D,2 10 signal-operating means under the eontrol'of 1909.

s ald circuit-closing e1ements,' and means at i I HARRY O RUGH l 'the central station for selectively operating thedesred signal-controlling means with a- Witnesses:

' given position ofA said circuit-closing ele- MAX N. ZABEL,

ments. A O. WERN NIEL. 

